John CollinsonJohn Collinson was Senior Lecturer at Keele University, an Exploration Geologist at Britoil and Professor of Sedimentology at Bergen University before running his own consultancy. He has led innumerable courses and field trips in the Pennines. Brian oy Rosen taught and continued research at the Universities of Aberystwyth and Newcastle-upon-Tyne before taking up a research position at the Natural History Museum. Read More Read Less